SEATWORK Prove the following identities. 1. tan y+cot y = 1 sec y cscy cos20 2. 1 - = sin 0 1+sin 0 3. 1+sin
SEATWORK Prove the following identities. 1. tan y+cot y = 1 sec y cscy cos20 2. 1 - = sin 0 1+sin 0 3. 1+sin x 1-sin x = 4 tan x secx 1-sin x 1+sin x csc x+ sec x tan x 4. = tan x sec x csc2x
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